Vector Graphic Images / Designs to reflect some concepts in our software

We are a software house which develops a CRM product. A key concept of the product is called Involvements and denotes how a person is involved with the organisation using the product. The product is mainly aimed at Not for Profit organisations and the involvements can range from Volunteers, Donors, Fundraisers, Legators, Grant Benificaries etc.

The Product is called alms.NET .

So we need an Involvement Image/Drawing that we can use to do presentations (using Prezi so must be Vector Graphic based) If this is successful we can do more to reflect other concepts.

I have attached the product logo to give an idea of the current thinking.